Index Catalog // ScholarsArchive@OSU

Investigating the effects of temperature on secondary metabolism in Vitis vinifera L. cv. merlot berries

Creator:: Cohen, Seth D.
Abstract:: Grapes (e.g. Vitis vinifera L.) are one of the more important fruit crops from an economic standpoint with world market values over 550 million US dollars in 2007 and 2008, second to apples (United States Department of Agriculture). While a satisfactory level of ripeness is of primary concern, the quality...
Resource Type:: Dissertation
Full Text:: : _______________________________________________________ James A. Kennedy Grapes (e.g. Vitis vinifera L.) are one of the more important fruit

Analysis of proanthocyanidin A2 and its presence in various commercial products

Creator:: Koerner, Jayma L.
Abstract:: Proanthocyanidins (PACs) containing A-type linkages, like those found in cranberry, have been implicated as beneficial phenolic compounds in human health, but much research is still required to better understand their activity fully. One major impediment to progress has been the existence of effective analytical methods for A-type PAC quantification. This...
Resource Type:: Masters Thesis
Full Text:: request. Jayma L. Koerner, Author CONTRIBUTION OF AUTHORS Dr. James A. Kennedy

Effect of berry integrity on proanthocyanidin extraction during wine production

Creator:: Cerpa-Calderon, Fiorella Karen
Abstract:: Proanthocyanidins are a grape-derived phenolic class of compound that provide wine with bitterness and astringency. Because of this, proanthocyanidins are considered to be essential components of wine quality. Proanthocyanidins are localized in the seed, skin and stem tissue of the grape berry and the composition of proanthocyanidins will vary depending...
Resource Type:: Masters Thesis
Full Text:: James A. Kennedy Interest in research on the phenolic compounds in red wine continues to grow due

Composition of flavonoid phenolic polymers isolated from red wine during maceration and significance of flavan-3-ols in foods pertaining to biological activity

Creator:: Aron, Patricia M.
Abstract:: Representing the most common flavonoid consumed in the American diet, the flavanols and their polymeric condensation products, the proanthocyanidins, are regarded as functional ingredients in various beverages, whole and processed foods, herbal remedies and supplements. Their presence in food affects food quality parameters including astringency, bitterness, sourness, sweetness, salivary viscosity,...
Resource Type:: Masters Thesis
Full Text:: : _________________________________________________ James A. Kennedy Representing the most common flavonoid consumed in the American diet

Influence of vine vigor and shading in Pinot noir (Vitis vinifera L.) on the concentration and composition of phenolic compounds in grapes and wine

Creator:: Cortell, Jessica M.
Abstract:: In 2003 and 2004 vigor zones were delineated in two commercial vineyard sites based on vine growth variation to assess fruit and wine phenolic chemistry. In 2004, the effects of shading on the accumulation of phenolic compounds were also investigated. Model extractions were done from the shading experiment and the...
Resource Type:: Dissertation
Full Text:: . Abstract approved: _________________________________________________ James A. Kennedy In 2003

Assessing the impact of temperature on grape phenolic metabolism

Creator:: Cohen, Seth D.
Abstract:: Many climatic factors influence grape berry composition including nutrient status, water availability, biotic stress, sun exposure and temperature. Previous research examined the effects of many factors listed above and much progress has been made. It is often difficult, however, to separate effects that typically confound each other, such as sun...
Resource Type:: Masters Thesis
Full Text:: : _______________________________________________________ James A. Kennedy Many climatic factors influence grape berry composition including

Implications of cougar prey selection and demography on population dynamics of elk in northeast Oregon

Creator:: Clark, Darren A.
Abstract:: Mule deer (Odocoileus hemionus hemionus) and Rocky Mountain elk (Cervus canadensis nelsoni; hereafter elk) populations in northeast Oregon have declined in the past 10 to 20 years. Concurrent with these declines, cougar (Puma concolor) populations have apparently increased, leading to speculation that predation by cougars may be responsible for declining...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Darren A. Clark

Effect of chemical composition on textural quality of red wine

Creator:: Ntuli, Richard Gondai
Abstract:: Red wine texture is a particularly important property of overall red wine quality whose origin is not well understood. The overall goal of this study was to improve our understanding of how chemical composition influences red wine texture. Unlike previous studies that have used model systems to investigate how chemical...
Resource Type:: Masters Thesis

Evaluation of wet brewers' grain ensiled with low quality forages

Creator:: Kennedy, Matthew A. (Matthew August)
Abstract:: Two experiments were conducted to evaluate the use of wet brewers' grain (WBG) alone and with straw so it can be used as part of the sole ration for ruminants. In Exp. 1, WBG was ensued alone and was mixed with one of two straws, wheat or tall fescue grass...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Matthew A. Kennedy for the degree

Penumbra : A Spatiotemporal Shade-Irradiance Analysis Tool with External Model Integration for Landscape Assessment, Habitat Enhancement, and Water Quality Improvement

Creator:: Halama, Jonathan James
Abstract:: Several solar energy models exist, but all models must balance: computational runtime, light complexity, and model output volume. These models span the spectrum of simplistic global solar energy equation sets to complex light ray-tracing models. Spatiotemporally inaccurate representations of solar energy may cause compounding simulation effects and introduce unknown modeling...
Resource Type:: Dissertation
Full Text:: . Kennedy James J. Graham Several solar energy models exist, but all models must

ScholarsArchive@OSU

Investigating the effects of temperature on secondary metabolism in Vitis vinifera L. cv. merlot berries

Analysis of proanthocyanidin A2 and its presence in various commercial products

Effect of berry integrity on proanthocyanidin extraction during wine production

Composition of flavonoid phenolic polymers isolated from red wine during maceration and significance of flavan-3-ols in foods pertaining to biological activity

Influence of vine vigor and shading in Pinot noir (Vitis vinifera L.) on the concentration and composition of phenolic compounds in grapes and wine

Assessing the impact of temperature on grape phenolic metabolism

Implications of cougar prey selection and demography on population dynamics of elk in northeast Oregon

Effect of chemical composition on textural quality of red wine

Evaluation of wet brewers' grain ensiled with low quality forages

Penumbra : A Spatiotemporal Shade-Irradiance Analysis Tool with External Model Integration for Landscape Assessment, Habitat Enhancement, and Water Quality Improvement

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